I have been with elephant and admiral for nearly 5 years now (same company) and i must say i cannot fault them in anyway. But they do still fight each other for business admiral being the "official" company with elephant being a trading name as such. Anyways long story short im 22 and im fully comp paying about £700 ish. about the same as last year for a group 14 golf GTI turbo. I dont even shop round any more as i know there is no way it can be beaten, not at my age.
Try just putting the car in and not the reg, im possitive the option is there for a uk spec car.
Oh and one more tip, use admiral = always cheaper.
hope this helps you and for gods sake man dont use comparison web sites, aviod them like the plague. Go direct and save loads.